Multi-Tech Systems ISIHP-2U - Manual (Page 114)

114 MultiModemISI Hybrid Series, ISIHP-2S/2U/4S/4U/4SD
Terminal Adapter AT Commands & S-Registers
same value as Data DN/MSN 1 and/or 2. A call accepted
by Modem DN/MSN 2 will be routed to the second
modem.
Usage: *!DNn
Function: Disable Modem DN/MSN n
Values: n=1 (disable Modem DN/MSN 1),
n=2 (disable Modem DN/MSN 2)
Default: All ports are enabled by default
Description: *!DNn disables a Modem DN/MSN which
will effectively disable the associated modem port from
receiving any modem calls. However, the port will still
be able to originate modem calls. This is useful for
applications where a specific port is for dial-out only.
Usage: *!ENn
Function: Enable Modem DN/MSN n
Values: n=1 (enable Modem DN/MSN 1),
n=2 (enable Modem DN/MSN 2)
Default: All ports are enabled by default
Description: *!ENn enables a Modem DN/MSN which
will put it back in service for accepting and originating
modem calls.
!Z=n Rate Adaptation Protocol
Values: n = 5, 6, 9, or 12
Default: !Z=9 (PPP)
Selects the rate adaptation protocol used to communicate with another
terminal adapter. The local and remote terminal adapters must be set to the
same protocol for communication to take place.
!Z=5 V.120 protocol
!Z=6 V.110 protocol
!Z=9 PPP protocol
!Z=12 X.75 protocol